{
"manageEntity": {
"action": "Save",
"entityId": "2072330100",
"entityType": "Track",
"nonce": "0xcdd3de939f9f8e7b8b6b8f0ba6c255b8e501bf425df95f1a7fb1ed5d0bfd496a",
"signature": "0xc4606a1e56acfdb9229f7fde3f43a4d7f54f1bb6875f0237b9097132af12f16245acae209df57529b7c3ea9eea9fe092905a8de0bfd474c0250f71f6754e5c7b1c",
"signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
"userId": "386745392"
}
}